Now that the U.S. Food and Drug Administration has banned Red Dye No. 3, artificial food dyes are under increasing scrutiny.

Guy suggests using natural food coloring as an alternative. Guy notes that she "likes to use beetroot juice or dragonfruit powder for reds and pinks, spirulina, spinach, green pandan leaf powder ...

For an example of natural colorings that are allowed in the store, take the 365 brand food coloring product (for ... Blue Dye No. 2, Green Dye No. 3, Red Dye No. 3, Red Dye No. 40, Yellow Dye ...